Cardiac Computed Tomography (CT) and Magnetic Resonance Imaging (MRI)

Oklahoma University Health Science Center (OUHSC) offers non-invasive and comprehensive cardiac imaging technology including CT and MRI. We have state-of –the-art 1.5T MRI machine and 64 slice CT scanner dedicated for cardiac imaging. 


Meet our team:

Dr. Mukta D. Agrawal, MD

Assistant Professor of Radiology

Fellowship trained specialist in cardiac CT and MRI from Brigham and Women Hospital, Boston, MA.


Dr. Aneesh Pakala, MD

Assistant Professor of Cardiology

Echocardiography and cardiac CT


Dr. David Huard, MD

Assistant Professor of Radiology

Cardiothoracic imaging


Dr. Charles Anthony Lawrence Jr., MD

Assistant Professor of Radiology

Pediatric cardiac CT/MRI imaging



Patient information


What is cardiac CT?

A cardiac CT scan, also known as CAT scan, is similar examination as any other CT. It is dedicated to study details of heart and blood vessels.


Cardiac CT procedures

1. Coronary CT angiography

It is performed to visualize the blood vessels (coronary artery) supplying the heart muscles.  The presence of plaque in the coronary artery indicates presence of coronary artery disease. The plaque build up can lead to narrowing of lumen of the coronary artery, which limits the blood flow to heart resulting in chest discomfort particularly with increased activity. However, these symptoms can be caused by other conditions that are not related to coronary artery disease. This study is performed to detect, and quantify presence of coronary artery disease. 


2. Cardiac CT for structural heart disorder

It is performed to study structural abnormalities and function of the heart, and blood vessels supplying heart and body organs. This study is also obtained prior to aortic or mitral valve replacement procedure for pre-operative planning.  


3. Coronary artery calcium scan 

It is performed to detect the presence (and if present, quantify the amount) of coronary artery calcium in patients who do not have any known coronary artery disease. The presence of calcium indicates the presence of coronary plaque and atherosclerotic coronary artery disease. This test can also be obtained for patients who have equivocal results with other non-invasive functional cardiac testing such as exercise treadmill, myocardial perfusion study (SPECT) or echocardiography.  


The physician can use the information from this test, together with other risk factor information, such as blood pressure and cholesterol levels, to determine a patient’s future risk of having a heart attack or stroke. Patients with coronary plaque have a higher risk of future events and are more likely to benefit from treatment with cholesterol-lowering medications or aspirin than those who have no evidence of plaque.



What should you know?

Because heart is continuously moving, in order to get good pictures of heart, oral medication is prescribed by referring physician to slow down patient’s heart rate. Typically, this oral medication is taken 4 hour prior to arrival for the study. Weather patient needs oral medication or not is decided by referring physician. Some patients need it and some do not. It is important step before arrival for the CT examination and you should talk to your doctor about it. Coronary artery calcium scan does not require oral medication. 



Cardiac CT study is performed at the children’s hospital located at 1200 Children's Ave, Oklahoma City, OK 73104. 



Cardiac MRI

Cardiac MRI is comprehensive test used to evaluate structure and function of the heart and blood vessels. It is also used to evaluate cardiac muscle scar and abnormity in blood flow within cardiac chambers. In this study, multiple images of heart are obtained in multiple angles. It dose not use radiation. 


Cardiac magnetic resonance imaging may be used to assess signs or symptoms of a variety of conditions, including: atherosclerosis, cardiomyopathy, congenital heart disease, various causes of heart failure, abnormality in cardiac chambers, valvular heart disease, or a heart tumor.


What should you expect:

It is typically longer study requiring a couple of hours.  Therefore, please expect 3 hour time period to finish this study.




Cardiac MRI is performed at main campus Presbyterian building located at downtown main hospital.


To schedule an appointment call following number:

Phone: 405-271-5533

Fax: 405-271-2575